Purple-leaf plum, alias: red-leaf plum, is a small deciduous tree of the Rosaceae family, up to 8 meters tall. It is native to southwestern Asia and is widely planted in North China and its southern regions. The leaves are purple all year round. It is a famous foliage tree species. It is suitable for solitary planting and group planting, and can set off the background. Especially the purple shiny leaves, among the green leaves, are like everlasting flowers, forming a beautiful landscape in the green mountains and green waters.